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https://www.readbyqxmd.com/read/27921326/correlation-of-genetic-results-with-testicular-histology-hormones-and-sperm-retrieval-in-nonobstructive-azoospermia-patients-with-testis-biopsy
#1
W Liu, X Gao, G Ma, L Yan, T Chen, T Li, R-M Yu, J-L Ma
To investigate the frequency and types of genetic results in different testicular histology of patients with nonobstructive azoospermia (NOA), and correlated with hormones and sperm retrieval (SR), a retrospective study was conducted in 286 Chinese NOA patients who underwent testis biopsy and 100 age-matched fertile men as the control group. Chromosome karyotype analyses were performed by the peripheral blood chromosome G-band detection method. Screening of Y chromosome microdeletions of azoospermia factor (AZF) region was performed by polymerase chain reaction (PCR) amplification of 11 sequence-tagged sites (STS)...
December 6, 2016: Andrologia
https://www.readbyqxmd.com/read/27919288/variation-in-male-spermiation-response-to-exogenous-hormones-among-divergent-populations-of-red-eyed-treefrogs
#2
Leah E Jacobs, Jeanne M Robertson, Kristine Kaiser
BACKGROUND: The non-lethal collection of sperm from live males is an important component for multiple captive-breeding techniques, including assisted reproductive technology (ART) protocols, sperm cryopreservation and in vitro fertilization. However, in amphibians, the type and amount of hormone necessary to induce spermiation can be highly variable, even among closely related species. We are unaware of any studies that have examined the spermiation response to exogenous hormones across highly differentiated populations within a species...
December 5, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27918161/-current-options-of-preimplantion-genetic-screening-and-preimplantation-genetic-diagnostics
#3
V Šimečková
OBJECTIVE: The aim of this work is to summarize the current knowledge about preimplantation genetic screening and diagnostics. DESIGN: A review article. SETTING: Department of Gynecology and Obstetrics, District Hospital Šternberk, IVF Clinic, Olomouc. RESULTS: Preimplantation genetic testing is a complex of genetic and molecular cytogenetic examinations, which can help to detect abnormalities in embryos before transfer into the uterus of the mother...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27916070/-effect-of-luteal-phase-gonadotropin-releasing-hormone-agonist-administration-on-pregnancy-outcome-in-ivf-icsi-cycles-a-systematic-review-and-meta-analysis
#4
L P Yu, N Liu, Y Liu
Objective: To evaluate the potential efficacy and safety of gonadotropin-releasing hormone agonist(GnRH-a) administration in the luteal-phase on in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles in assisted reproductive technology (ART). Methods: The relevant papers published before November 2015 were electronically searched in PubMed, EMBASE, Cochrane Library, WHO ICTRP, ClinicalTrials.gov, CNKI, CBM and WanFang database to collect randomized controlled trial (RCT) involving GnRH-a administration in the luteal-phase on IVF/ICSI cycles in ART...
November 25, 2016: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/27909843/increased-risk-of-large-for-gestational-age-birthweight-in-singleton-siblings-conceived-with-in-vitro-fertilization-in-frozen-versus-fresh-cycles
#5
Barbara Luke, Morton B Brown, Ethan Wantman, Judy E Stern, James P Toner, Charles C Coddington
BACKGROUND: Children born from fresh in vitro fertilization (IVF) cycles are at greater risk of being born smaller and earlier, even when limited to singletons; those born from frozen cycles have an increased risk of large-for-gestational age (LGA) birthweight (z-score ≥1.28). This analysis sought to overcome limitations in other studies by using pairs of siblings, and accounting for prior cycle outcomes, maternal characteristics, and embryo state and stage. METHODS: Pairs of singleton births conceived with IVF and born between 2004 and 2013 were identified from the Society for Assisted Reproductive Technology Clinic Outcome Reporting System database, matched for embryo stage (blastocyst versus non-blastocyst) and infant gender, categorized by embryo state (fresh versus frozen) in 1st and 2nd births (four groups)...
December 1, 2016: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/27908224/serum-substance-p-concentrations-to-predict-oocyte-maturation-index-and-clinical-pregnancy
#6
Yavuz Sahin, Enis Özkaya, Semra Kayatas Eser, Tayfun Kutlu, Ilhan Sanverdi, Gulden Tunali, Ates Karateke
AIM: The aim of this study was to assess the predictive value of serum substance P (SP) concentrations on oocyte maturation and clinical pregnancy. METHODS: Ninety-three women with unexplained infertility underwent intracytoplasmic sperm injection (ICSI) cycles. Antagonist protocol was started for each participant and at the day of oocyte pick up, serum samples were obtained from each participant to assess SP concentrations, and these concentrations were utilized to predict mature/total oocyte ratio and clinical pregnancy...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27901279/dopamine-agonists-for-preventing-ovarian-hyperstimulation-syndrome
#7
REVIEW
Huilin Tang, Selma Mourad, Suo-Di Zhai, Roger J Hart
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is a potentially serious complication of ovarian stimulation in assisted reproduction technology (ART). It is characterised by enlarged ovaries and an acute fluid shift from the intravascular space to the third space, resulting in bloating, increased risk of venous thromboembolism and decreased organ perfusion. Most cases are mild, but forms of moderate or severe OHSS appear in 3% to 8% of in vitro fertilisation (IVF) cycles. The dopamine agonist cabergoline was introduced as a secondary prevention intervention for OHSS in women at high risk of OHSS undergoing ART treatment...
November 30, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27899313/prognostic-factors-for-assisted-reproductive-technology-in-women-with-endometriosis-related-infertility
#8
Chloé Maignien, Pietro Santulli, Vanessa Gayet, Marie-Christine Lafay-Pillet, Diane Korb, Mathilde Bourdon, Louis Marcellin, Dominique de Ziegler, Charles Chapron
BACKGROUND: Assisted reproductive technology is one of the therapeutic options offered for managing endometriosis-associated infertility. Yet, published data on assisted reproductive technology outcome in women affected by endometriosis are conflicting and the determinant factors for pregnancy chances unclear. OBJECTIVE: To evaluate assisted reproductive technology outcomes in a series of 359 endometriosis patients, to identify prognostic factors and determine if there is an impact of the endometriosis phenotype...
November 26, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27893658/freeze-all-embryo-transfer-awareness-and-acceptance-of-ivf-et-patients-in-china
#9
Yan-Xiu Guo, Yan-Jing Yin, Li Tian
The aim of the study was to determine the level of awareness and acceptance of in vitro fertilization pre-embryo transfer (IVF-ET) patients for freeze-all embryo transfer, improve relevant technical specifications, and optimize treatment results based on medical experience.Questionnaires were completed by women who received in vitro fertilization embryo transfer. A total of 377 valid samples were included into this study. Through focus group discussions and tablet assisted intercept interviews, we analyzed the basic situation, the awareness for frozen-all embryo transfer, and the need for frozen-all embryo transfer information for infertile patients...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27890704/cryopreservation-of-adult-cervid-testes
#10
Lavanya Pothana, Lalitha Devi, Sandeep Goel
Several species of cervids are currently classified as threatened or endangered due to a rapid decline in their populations. Sperm cryopreservation, in association with assisted reproductive technologies, can find application for the conservation of endangered cervids. In cases of unsuccessful sperm retrieval through other means prior to the death of the animal, adult testis is the only source of sperm. Recovery of viable sperm from adult testes depends on the effective preservation of testicular tissues through optimization of cryopreservation protocols...
November 25, 2016: Cryobiology
https://www.readbyqxmd.com/read/27881623/comparison-of-three-infertility-specific-measures-in-men-and-women-going-through-assisted-reproductive-technology-treatment
#11
Juliana Pedro, Yoon Frederiksen, Lone Schmidt, Hans J Ingerslev, Robert Zachariae, Mariana V Martins
We compared the psychometric properties of COMPI Fertility Problem Stress Scales, Fertility Problem Inventory, and Fertility Quality of Life Tool in 293 patients enrolled for assisted reproductive technology. COMPI Fertility Problem Stress Scales and Fertility Problem Inventory subscales presented higher internal consistency. COMPI Fertility Problem Stress Scales differentiated best between its domains. Fertility Problem Inventory revealed better concurrent validity. Fertility Quality of Life Tool presented better fit...
November 22, 2016: Journal of Health Psychology
https://www.readbyqxmd.com/read/27876421/prognostic-factors-for-patients-undergoing-vitrified-warmed-human-embryo-transfer-cycles-a-retrospective-cohort-study
#12
Toshifumi Takahashi, Ayumi Hasegawa, Hideki Igarashi, Mitsuyoshi Amita, Jun Matsukawa, Isao Takehara, Satoko Suzuki, Satoru Nagase
We examined the prognostic factors for pregnancy in 210 vitrified-warmed embryo transfer (ET) cycles in 121 patients. The univariate analysis showed that age, gravida, the number of cycles associated with infertility caused by endometriosis, the number of previous assisted reproductive technology (ART) treatment cycles, and the number of ICSI procedures were significantly lower in pregnant cycles compared with non-pregnant cycles. The percentages of ET using at least one intact embryo and of ET using at least one embryo that had developed further after warming were significantly higher in pregnant cycles compared with non-pregnant cycles...
November 23, 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27875265/oviduct-roles-in-fertilization-and-early-embryo-development
#13
REVIEW
Shuai Li, Wipawee Winuthayanon
Animal oviducts and human Fallopian tubes are a part of the female reproductive tract that hosts fertilization and pre-implantation development of the embryo. With an increasing understanding of roles of the oviduct at the cellular and molecular levels, current research signifies the importance of the oviduct on naturally conceived fertilization and pre-implantation embryo development. This review highlights the physiological conditions within the oviduct during fertilization, environmental regulation, oviductal fluid composition and its role in protecting embryos and supplying nutrients...
January 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/27873567/early-germinal-vesicle-breakdown-is-a-predictor-of-high-preimplantation-developmental-competent-oocytes-in-mice
#14
Shogo Higaki, Masao Kishi, Keisuke Koyama, Masashi Nagano, Seiji Katagiri, Tatsuyuki Takada, Yoshiyuki Takahashi
The preselection of highly developmentally competent oocytes for in vitro maturation (IVM) is crucial for improving assisted reproductive technology. Although several intrinsic markers of oocyte quality are known to be closely related to the onset of nuclear maturation (germinal vesicle break down, GVBD), a direct comparison between GVBD timing and oocyte quality has never been reported. In this study, we established a non-invasive oocyte evaluation method based on GVBD timing for preselecting more developmental competent oocytes in mice...
November 22, 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27866723/association-between-ambient-particulate-matter-exposure-and-semen-quality-in-wuhan-china
#15
Li Wu, Lei Jin, Tingming Shi, Bing Zhang, Yun Zhou, Ting Zhou, Wei Bao, Hua Xiang, Yao Zuo, Guanlian Li, Cheng Wang, Yonggang Duan, Zhe Peng, Xiji Huang, Hai Zhang, Tian Xu, Yonggang Li, Xinyun Pan, Ying Xia, Xun Gong, Weihong Chen, Yuewei Liu
BACKGROUND: Health effects of exposure to particulate matter (PM) on male reproductive health remain unclear. Only a limited number of studies have investigated the effects of PM2.5 or PM10 exposure on semen quality, and the results were largely inconsistent. OBJECTIVES: To quantitatively assess the exposure-response association between PM exposure and semen quality in Chinese men who were exposed to a wide concentration range of PM. METHODS: We investigated 1759 men from Wuhan, China, who were partners of women undergoing assisted reproductive technology procedures, and had semen examined at least once between 2013 and 2015...
November 17, 2016: Environment International
https://www.readbyqxmd.com/read/27862396/research-on-reproduction-is-essential-for-captive-breeding-of-endangered-carnivore-species
#16
K Jewgenow, B C Braun, M Dehnhard, J Zahmel, F Goeritz
Assisted reproductive technology (ART) has great potential for conservation, but its successful application in captive breeding programmes of endangered species is often compromised by limited background on species' biology. Although carnivore species benefit from knowledge obtained in domesticated species (dogs, cats and ferrets), the focus of research is different. In pet animals, research in reproduction has mainly been focused on ovarian function and contraception, although substantial progress has also been made in the field of in vitro embryo production, transgenic embryos and cloning to aid relevant medical models...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27862365/electroejaculation-in-patients-with-spinal-cord-injuries-a-21-year-single-center-experience
#17
Timo Fw Soeterik, Paul W Veenboer, Ralph Ja Oude-Ophuis, Tycho Mtw Lock
OBJECTIVES: To evaluate treatment results of electroejaculation in patients with spinal cord injuries and the additional value of repeated electroejaculation. METHODS: We carried out a retrospective chart analysis of all spinal cord injury patients treated with electroejaculation at University Medical Center Utrecht, Utrecht, the Netherlands, from January 1994 to January 2015. Data were collected on the patients' demographics and medical history. We evaluated sperm quality according to World Health Organization standards, pregnancy and delivery rates...
November 16, 2016: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/27861710/endometriosis-and-uterine-malformations-infertility-may-increase-severity-of-endometriosis
#18
Jeremy Boujenah, Eleonora Salakos, Mélodie Pinto, Joanna Shore, Christophe Sifer, Christophe Poncelet, Alexandre Bricou
INTRODUCTION: The aim of our study was to compare the stage and severity of endometriosis in fertile and infertile women with congenital uterine malformations. MATERIAL AND METHODS: We performed an observational study from September 2007 to December 2015 in a tertiary care university hospital and assisted reproductive technology center. A total of 52 patients with surgically proven uterine malformations were included. We compared 41 infertile patients with uterine malformations with 11 fertile patients with uterine malformation...
October 13, 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27856185/utilization-of-third-party-in%C3%A2-vitro-fertilization-in-the-united%C3%A2-states
#19
Vitaly A Kushnir, Sarah K Darmon, Alice J Shapiro, David F Albertini, David H Barad, Norbert Gleicher
BACKGROUND: The use of in vitro fertilization that includes third-party in vitro fertilization is increasing. However, the relative contribution of third-party in vitro fertilization that includes the use of donor oocytes, sperm, or embryo and a gestational carrier to the birth cohort after in vitro fertilization is unknown. OBJECTIVE: The purpose of this study was to examine the contribution of third-party in vitro fertilization to the in vitro fertilization birth cohort over the past decade...
November 14, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27852683/potential-of-human-twin-embryos-generated-by-embryo-splitting-in-assisted-reproduction-and-research
#20
REVIEW
Laila Noli, Caroline Ogilvie, Yacoub Khalaf, Dusko Ilic
BACKGROUND: Embryo splitting or twinning has been widely used in veterinary medicine over 20 years to generate monozygotic twins with desirable genetic characteristics. The first human embryo splitting, reported in 1993, triggered fierce ethical debate on human embryo cloning. Since Dolly the sheep was born in 1997, the international community has acknowledged the complexity of the moral arguments related to this research and has expressed concerns about the potential for reproductive cloning in humans...
November 16, 2016: Human Reproduction Update
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